Did You Know...
...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7361417 | Phosphor layer, image display device employing the same and method for making the phosphor layer A phosphor layer having improved contrast and brightness characteristics and a display device including the same are provided. The phosphor layer is made out of an ultra-fine pigment, a dispersant, a phosphor, a photosensitizer and a binder. The phosphor has a unifo... | 04/22/2008 |
| 6891340 | Tracking picture tube The present invention relates to a tracking picture tube of the type in which comb-shaped electrodes or optical detecting means (12, 13) are used for generating a signal related to the position of an electron beam with respect to the strips (5). The tu... | 05/10/2005 |
| 6829019 | Picture display device of the index type A picture display device of the index type comprises a cathode ray tube (1) and a display window with a display screen (10) having phosphor patterns comprising parallel aligned phosphor lines (R,G,B), and with an index system (20) having a plura... | 12/07/2004 |
| 6650071 | Color display tube with improved shadow mask In color display tubes (1) with a dotted shadow mask (13) structure and an in-line electron gun (10), the geometry of the screen (6) and the deflection field produced by the deflection unit (11) cause triad rotation, which is a rotation of the three phosp... | 11/18/2003 |
| 6586894 | Picture display device of the index type Picture display device comprising a cathode ray tube whose display screen (10) is provided with index electrodes (20, 21) comprising elongated conducting elements disposed substantially parallel to an axis of symmetry (50) of the display screen (10). In o... | 07/01/2003 |
| 6388372 | Display screen A display screen may be formed with a moth-eye like array of elements of sufficiently small size to reduce glare from ambient light while passing outbound image light substantially unaffected. The screen may be used in direct view and projection displays.... | 05/14/2002 |
| 6326723 | Display screen A display screen may be formed with a moth-eye like array of elements of sufficiently small size to reduce glare from ambient light while passing outbound image light substantially unaffected. The screen may be used in direct view and projection displays.... | 12/04/2001 |
| 6285122 | Color cathode ray tube with cover film on panel unit A color cathode ray tube has a vacuum enclosure including a panel unit having a fluorescent film formed on an inner face, the fluorescent film consisting of densely arrayed three color dot trios of a fluorescent material. A shadow mask is mounted in the v... | 09/04/2001 |
| 6281947 | Mask-free, single gun, color television systems A system for displaying a color broadcast television signal is provided. The system employs a cathode ray tube (CRT) which has only one electron gun and does not have a mask. The faceplate of the CRT has red, green, and blue phosphor stripes which form tr... | 08/28/2001 |
| 5952767 | Index-type color cathode ray tube First and second index signal phosphor layers are formed on a phosphor screen that is formed on the inner surface of a face plate. A rear plate is provided with first and second light sensing units for detecting signal lights from the first and second ind... | 09/14/1999 |
| 5818163 | Fluorescent screen pattern for beam index tube and beam index tube including the pattern A screen for a beam index tube includes a fluorescent surface having a pattern of color stripes respectively producing red, green, and blue light in unit areas within the stripes in response to an incident electron beam and index unit areas regularly arra... | 10/06/1998 |
| 5414330 | Cathode ray tube control apparatus A cathode ray tube control apparatus includes phosphor display screen, three electron guns for emitting R, G, B electron beams to the display screen, a shadow mask placed between the electron guns and the display screen, and index phosphors deposited on t... | 05/09/1995 |
| 5399935 | Electron gun with reduced heating of the grid An electron gun comprises a cathode made of an emissive material with an active face emitting electrons through a control grid that is placed before the active face but has no contact with it. The active face has emissive zones and non-emissive zones. The... | 03/21/1995 |
| 5122708 | Color reference CRT and method of making A color reference CRT of the type employing a screen of a pattern of individual phosphor elements of different color components, is produced by adjusting the screen weights of the different color components to achieve the desired reference color when the ... | 06/16/1992 |
| 4908547 | Beam index type color cathode ray tube Described is a beam index type color cathode ray tube in which at least one of tricolor phosphor stripes, that is the red, blue and green stripes, is different in width from the other color phosphor stripes, and m index stripes are associated with n sets ... | 03/13/1990 |
| 4900983 | Cathode ray tube employing index phosphor elements adhered to a color selective electrode A color cathode ray tube includes an automatic convergence unit employing index elements on the reverse surface of a color-selective electrode. The paste used for forming the index elements has a composition consisting essentially of index phosphors, an i... | 02/13/1990 |
| 4894531 | Photodetector for receiving an index signal of a beam-index cathode-ray tube A photodetector including a planar light guide of a polygonal shape in which organic phosphor is dispersed in a transparent support material, and a pair of photoelectric conversion elements such that light having a wavelength range for exciting the organi... | 01/16/1990 |
| 4804845 | Luminescence detecting devices A luminescence detecting device including a luminescence sensitive member made of a transparent resin or the like and containing at least two different kinds of organic phosphors dispersed therein. The first organic phosphor is operative to absorb fluores... | 02/14/1989 |
| 4764706 | Flat cathode-ray tube and method of fabricating same A flat CRT having a phosphor screen inclined with respect to the center axis of an electron beam and formed by applying phosphors to the inner surface of a tube wall. The tube inner surface is defined by rotating a plurality of logarithmic spiral curves h... | 08/16/1988 |
| 4757231 | Beam-index type color cathode ray tube device A beam-index type color cathode ray tube device which includes a front panel portion, a screen panel portion which faces the front panel portion, a phosphor screen including a plurality of index phosphor stripes fixed to the inner surface of the screen pa... | 07/12/1988 |
| 4752716 | Beam-index type color cathode ray tube devices A beam-index type color cathode ray tube device which comprises a color cathode ray tube having a front panel portion and a screen panel portion provided with a phosphor screen shaped rectangularly to include a plurality of color phosphor stripes accompan... | 06/21/1988 |
| 4720655 | Flat color cathode-ray tube with phosphor index stripes A flat color CRT having a phosphor screen comprises red, green and, blue primary phosphor color stripes arranged at a spacing, and phosphor index stripes arranged in some of the spaces between the phosphor color stripes in a definite relation thereto. A b... | 01/19/1988 |
| 4680502 | Index type color picture tube An index type color picture tube having a stripe type fluorescent screen with strips of a zinc sulfide-based green color phosphor, a zinc sulfide-based blue color phosphor, a red color phosphor which is a mixture of a Y2 O2 S:Eu phos... | 07/14/1987 |
| 4654559 | Flat color cathode-ray tube A flat color CRT wherein a single beam emitted from an electron gun scans the inner surface of a tube wall and which includes a phosphor screen formed on the walls inner surface. The phosphor screen comprises a nonluminescent substance and phosphor index ... | 03/31/1987 |
| 4635106 | Beam index color cathode ray tube with color-identifying patterns of stripes disposed in beam run-in area of display surface A television receiver in which a plurality of picture-displaying fluorescent lines (3), which are disposed on a screen (2) as the display surface of a cathode ray-tube so as to extend in the horizontal direction (in the direction of the arrow X) as the be... | 01/06/1987 |
| 4625147 | Index type color picture tube In an index type color picture tube including a stripe type fluorescent screen having stripe-shaped phosphor layers for green, blue and red color and a stripe-shaped phosphor layer for index detection, the phosphor for red color phosphor layer comprises a... | 11/25/1986 |
| 4533850 | Color projector apparatus of single cathode ray tube type A color projector apparatus including a single cathode ray tube of index-type having a first transparent panel with phosphor elements of three primary colors and an indexing element formed on the inner surface thereof, a second transparent panel located i... | 08/06/1985 |
| 4507585 | Beam-indexing color picture tube arrangement A frontal light extraction type beam-indexing color picture tube arrangement comprises a phosphor screen which is formed on the inner surface of the tube panel and includes an array of color phosphor stripes each of which has an appropriate afterglow time... | 03/26/1985 |
| 4406974 | Beam-indexing color picture tube A beam-indexing color picture tube includes a gun for producing an electron beam that scans across a screen of the tube and a plurality of index phosphor stripes provided on the screen for emitting near-ultraviolet index lights. The near-ultraviolet index... | 09/27/1983 |
| 4322655 | Beam index color cathode ray tube A beam index color cathode ray tube is provided with a screen arranged on the inner surface of a face plate portion and an electron gun arranged in a neck portion thereof. This screen comprises phosphor stripes and index stripes. The electron gun comprise... | 03/30/1982 |
| 4225880 | Energy-efficient beam-index displays with programmable power supplies Programmable power supplies are made responsive to beam-index and timing signals in order to automatically control the size and position of the display on a cathode ray tube. The high voltage power supply is also made programmable, responsive to video sig... | 09/30/1980 |
| 4194140 | Beam-indexing color image-presentation cathode ray tube A beam-indexing color image-presentation cathode ray tube comprises color-phosphor stripes arranged in a regular order and differently responsive to impingement by electron beams to produce light of different colors and index-phosphor stripes arranged to ... | 03/18/1980 |
| 4174523 | Flat display device An evacuated envelope has a rectangular display section and a gun section at one edge of the display section. The display section includes front and back walls which are generally rectangular, in closely spaced, parallel relation, and a plurality of space... | 11/13/1979 |
| 4107570 | Cathode ray tube indexing structures A cathode ray tube gun structure for minor deflection of an electron beam and employing electrostatic beam deflecting electrodes ultimately controlled by a deflection signal at a low voltage level for minor deflection of the beam. The minor beam deflectio... | 08/15/1978 |
| 4008402 | Method and apparatus for electron beam alignment with a member by detecting X-rays A method and apparatus are provided for alignment of an electron beam with precisely located areas of a major surface of a member. Marks of predetermined shape are formed of X-ray producing material and are positioned adjacent the major surface of the mem... | 02/15/1977 |
| 4003082 | Color television system employing index signal generating means A main index signal is generated concurrently with the excitation of a plurality of triplet groups of color generating segments by a sweeping electron beam at a frequency which is a nonintegral number multiplied by the triplet frequency, a frequency at wh... | 01/11/1977 |
| 3939486 | Cathode ray tube having index strip electrode A cathode ray tube for use with color image signal processing system, which comprises: an evacuated envelope having a transparent faceplate; an electron gun positioned within the envelope for emitting an electron beam toward the faceplate; a deflection me... | 02/17/1976 |
